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A Comprehensive Educational Website (established 1998)

Designed, Produced, and maintained (Edition 12, January 2022) by 

Bhavani Shankar Kodali MD

Updated January 2022

Trend Capnogram

Physiology of Capnography

Bhavani Shankar Kodali MD

 

Fast or Regular Capnogram

A Trend Capnogram

Fastcapno.gif trend.gif
 
 
A time capnogram may be recorded at two speeds. A high speed capnogram (about 7mm.sec-1) gives detailed information about each breath whereas the overall CO2 changes (trend) can be followed at a slow (about 0.7 mm.sec-1) speed.1
 
Reference:
 
1.Bhavani Shankar K, Moseley H, Kumar AY, Delph Y. Capnometry and anaesthesia. Can J Anaesth 1992;39:6:617-32.
 
 
 
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